BillionToOne is trading 4.02% down at $95.50 in pre-market, with no clear company-specific overnight catalyst identified.

  • It closed at $99.50 on September 3, 2026.
  • Canaccord Genuity’s Buy rating and $120 price target were reported on September 2.
  • Management is scheduled to appear at the Wells Fargo Healthcare Conference on September 9; neither item directly explains the September 4 pre-market drop.